--but I suspect you won't know for sure until it is done again--somewhere>

And, small fiber neuropathy definitely does NOT have to be confined to only the extremities. I had a full-body acute onset small-body syndrome, likened to a small-fiber Guillain Barre episode, and one can actually google up entities like acute small-fiber neuropathy (ASFN) and read about it; not common, but it does happen. Neuronopathies/Gangliopathies also can have predominantly small fiber involvement and not be "length-dependent" to the extremities:

http://www.questdiagnostics.com/hcp/...eralNeurop.htm

http://neuromuscular.wustl.edu/senso...tml#idiopathic

http://jnnp.bmj.com/content/72/4/540.abstract